Leopard POWER 600H Electrophoresis Power Supply
| Brand | Leopard |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | POWER 600H |
| Instrument Type | Protein Electrophoresis Power Supply |
| Voltage Range | 5–1000 V |
| Current Range | 1–1000 mA |
| Power Output | 1–300 W |
| Dimensions | 320 × 220 × 80 mm (L × W × H) |
| Display | LCD with simultaneous real-time readout of voltage, current, power, and timer |
| Output Modes | Constant Voltage, Constant Current, Constant Power |
| Timer Range | 1 min – 99 h 59 min |
| Weight | 3.5 kg |
| Safety Features | Overvoltage, arc, open-circuit, and load-surge detection |
| Thermal Management | Integrated temperature control (standard) |
| Parallel Output | Four independent output channels for concurrent multi-gel operation |
Overview
The Leopard POWER 600H Electrophoresis Power Supply is a high-precision, multi-mode DC power source engineered for reproducible and safe operation across a broad spectrum of electrophoretic techniques in molecular biology, biochemistry, and clinical diagnostics laboratories. Designed according to the fundamental principles of controlled direct-current field application, it delivers stable, programmable electrical parameters to drive migration of charged biomolecules—including proteins, nucleic acids, and peptides—through porous matrices such as polyacrylamide gels (PAGE, SDS-PAGE), agarose, cellulose acetate membranes, and IEF gels. Its architecture supports both analytical and preparative workflows, including Western blot transfer (electroblotting), seed purity testing, and isoelectric focusing (IEF), where precise regulation of electric field strength directly governs resolution, band sharpness, and thermal stability of the separation matrix.
Key Features
- Triple-Mode Output Control: Independently selectable constant voltage (5–1000 V, 1 V resolution), constant current (1–1000 mA, 1 mA resolution), or constant power (1–300 W, 1 W resolution) operation—enabling method-specific optimization without manual recalibration.
- Auto-Generate Function: Upon selection of one primary parameter (e.g., target voltage), the unit automatically calculates and maintains optimal corresponding current and power values in real time, eliminating misconfiguration and enhancing protocol fidelity.
- Microcurrent Hold Mode: At timer expiration, the system transitions seamlessly to a low-maintenance microcurrent state (<1 mA), preventing overmigration and diffusion artifacts during unattended runs—critical for overnight or extended electrophoresis protocols.
- Comprehensive Electrical Safety Architecture: Integrated monitoring for overvoltage, arcing, open-circuit conditions, rapid load transients, short circuits, and overload events; certified earth-leakage protection compliant with IEC 61010-1; audible and visual open-circuit alerts; automatic restart after transient power loss.
- Thermal Regulation System: Built-in temperature feedback loop actively modulates output to prevent gel overheating—especially essential for high-voltage SDS-PAGE and native PAGE applications where Joule heating compromises resolution and protein integrity.
- Four-Channel Parallel Output: Supports simultaneous operation of up to four independent electrophoresis units (e.g., mini-verticals, horizontal gels, blotting modules), improving throughput without compromising individual channel stability or cross-talk.
- High-Contrast LCD Interface: Real-time display of all operational parameters (V, mA, W, elapsed/remaining time) with intuitive menu navigation and non-volatile memory for protocol recall.
Sample Compatibility & Compliance
The POWER 600H is validated for use with standard electrophoresis systems from major suppliers—including Hoefer, Bio-Rad, C.B.S. Scientific, and custom-built rigs—across formats ranging from 7 × 8 cm mini-gels to 20 × 20 cm large-format vertical slabs and horizontal DNA analysis trays. It meets core safety and electromagnetic compatibility requirements per IEC 61010-1 (Ed. 3.1) for laboratory electrical equipment and conforms to RoHS Directive 2011/65/EU. While not FDA-cleared as a medical device, its design supports GLP- and GMP-aligned workflows through deterministic output behavior, audit-ready parameter logging (when paired with optional data export firmware), and traceable calibration pathways. The unit operates reliably under ambient temperatures of 10–40 °C and relative humidity ≤80% non-condensing.
Software & Data Management
The POWER 600H operates as a standalone instrument with embedded firmware—no external PC required for routine operation. All settings are retained in non-volatile memory across power cycles. For laboratories requiring electronic recordkeeping, optional RS-232 or USB-to-serial interface modules enable integration with LIMS or custom scripts for automated run logging, timestamped parameter capture, and CSV-based export. When deployed in regulated environments (e.g., QC labs supporting ISO/IEC 17025 or USP <1058>), the device supports 21 CFR Part 11-compliant audit trails via third-party middleware that enforces user authentication, electronic signatures, and immutable session logs.
Applications
- SDS-PAGE and native PAGE for protein subunit analysis, purity assessment, and molecular weight estimation
- Horizontal agarose gel electrophoresis for DNA fragment sizing, PCR product verification, and plasmid profiling
- Cellulose acetate membrane electrophoresis for serum protein fractionation in clinical chemistry
- Preparative PAGE for downstream protein recovery and purification
- Isoelectric focusing (IEF) using immobilized pH gradient (IPG) strips
- Electroblotting (Western, Southern, Northern transfers) onto PVDF or nitrocellulose membranes
- Seed variety identification and genetic purity testing per ISTA guidelines
FAQ
What electrophoresis techniques is the POWER 600H specifically optimized for?
It is engineered for high-reproducibility operation in SDS-PAGE, native PAGE, agarose gel electrophoresis, IEF, electroblotting, and cellulose acetate electrophoresis—with particular emphasis on thermal management during high-voltage runs.
Does the unit support remote monitoring or network connectivity?
No built-in Ethernet or Wi-Fi; however, optional serial (RS-232) or USB-CDC interfaces allow integration with lab automation software for parameter logging and run coordination.
Is calibration traceable to national standards?
Yes—factory calibration uses NIST-traceable multimeters and load banks; users may perform periodic verification using calibrated digital multimeters and precision resistive loads per internal SOPs.
Can the POWER 600H be used with high-voltage semi-dry blotting systems?
Yes—its 1000 V capability and constant-power mode ensure stable field delivery during semi-dry transfer, minimizing edge effects and uneven transfer efficiency.
What maintenance is required to sustain long-term accuracy?
Annual verification of output linearity and timer accuracy is recommended; no consumables or scheduled service intervals are specified—solid-state design ensures >100,000 hours MTBF under typical lab usage conditions.
